Tubing-catcher for oil-wells or the like.



W. H. McKISSICK.

TUBING CATCHER FOR OIL WELLS OR THE LIKE.

APPLICATION FILED JULY 27,1915.

1 -h 311mm W. H- M9 K\ss\cK Patented Oct. 17, 1916.

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TUBING-CATCHER FOR OIL-WELLS OR THE LIKE.

Specification of Letters Patent.

Patented Oct. 1'7, 1916.

Application filed July 27, 1915. Serial No. 42,158.

To all whom it concern Be it known that 1, WILLIAM H. MoKissIcK, a citizen of the United States, residing at Taft, in the county of Kern and State of California, have invented certain new and useful Improvements in Tubing-Catchers for Oil-Wells or the like, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in tubing catchers for oil wells or the like, and it is an object of the invention to provide a device of this general character of a novel and improved construction insertible within the tubing and which serves to automatically grab the same should the tubing fall.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved tubing catcher for oil wells or the like whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will be carefully defined in the appended claims.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a longitudinal sectional view illustrating a tubing catcher constructed in accordance with an embodiment ofmy invention; and Fig. 2 is a view, partly in elevation and partly in section, of one extremity of said device as herein embodied.

As disclosed in the accompanying drawings, 1 denotes a tubing section of conventional form disposed within the casing 2. My improved tubing catcher or packer, as herein embodied, consists of the sleeve 3 having the diametrically opposed beveled faces 4 with which coact the slips 0r friction jaws 5, in a manner substantially identical to that set forth in my co-pending application, Serial No. 21,454, filed April 14, 1915, and which is a renewal of original application filed March 12, 1913,, Serial No. 7 53,819, and of which the present application is an improvement.

Operatively engaged with and depending from the slips or jaws 5 are the bowed irons 6 having their lower extremities secured to the sleeve 7 suitably applied to the tubing 1. Surrounding the tubing 1 at a predetermined point below the sleeve 7 is a sec-' ond sleeve 8 capable of movement longitudinally of the tubing 1 and locked in predetermined adjustment through the medium of the binding screws 9, said adjustment of the sleeve 8 serving to regulate the tension of the spring 10 interposed between the sleeves 7 and 8 and surrounding the tubing 1, it being understood that the sleeve7 is also capable of movement longitudinally of the tubing 1. Under normal conditions the sleeve 7 together with the irons 6 and jaws 5 will place the spring 10 under slight compression, whereby it will be perceived that the spring 10 serves under normal conditions to afford a vibratory support for the sleeve 7 and its concomitant parts. In the event the tubing 1 should drop, the resultant vibratory movement of the spring 10 will force the sleeve 7 upwardly a distance sufficient to cause the jaws 5 to frictionally engage the inner wall of the casing 2.

11 denotes a nipple provided with the lug 17 extending within the slot 12 substantially in the form of an inverted L formed in the sleeve 15, said sleeve being of such a length as to substantially incase the spring 10, the lower extremity of the sleeve 15 has secured thereto the outwardly bowed elongated springs 16 which frictionally engage the inner wall of the casing 2. It will be' ','iperceived that with the lug 17 in the posltion shown in Fig. 2, the tubing 1 can be moved up and down with asteady motion --without the jaws 5 being caused to engage the casing 2, as'the friction oflered by-the springs 16 will not result in the requisite vibration of the spring- 10. However, when the lug is in a position to travel within the vertical portion of the slot 12, it will be perceived that when the pipe 1 drops, the contact of the lug 17 with the lower end of the vertical portion of the slot 12 will result in an abrupt stop which positively assures the requisite vibration of the spring 10. It is also to be observed that the nipple 11 serves as a union between adj acent extremities of the tubing sections, as is thought to be clearly set forth in the accompanying drawings.

From the foregoing description, it is thought to be obvious that a tubing catcher constructed in accordance with my invention is of an extremely simple and comparati-vely inexpensive nature and is particularly well adapted for use by reason of terial departure from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice.

I claim:

1. In combination with a well casing and a tubing disposed therein, slips operatively engaged with the tubing and adapted to coact with the casing, vibratory means for automatically imparting movement to the slips in one direction, said slips normally holding the vibratory means under compression whereby said slips are yieldably supported, a lug extending outwardly from the tubing, a sleeve surrounding said tubing and frictionally engageab'le with'the casing,

slips in-one direction, said slips normally holding the vibratory means under compresslon whereby said slips are yieldably supported, a lug extending outwardly from the tubing, and a sleeve surrounding said tubing and frictionally engageable with the easing, said sleeve being provided with a slot disposed longitudinally of the tubing into which the lug of the tubing extends.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. WILLIAM H. MGKISSICK. -Witnesses:

1 WILLIAM HENRY Coons,

HOWARD II. BELL. 

